.index{
	width: 100%;
	height: 50px;
	padding: 50px 0px 0px 0px;
	display: flex;
	flex-direction: row-reverse;
	justify-content: space-around;
	border-bottom: 1px solid orange;
}
.index a{
	display: block;
	width: 50%;
	text-decoration: none;
	font-size: 20px;
	color: #999999;
	line-height: 50px;
	text-align: center;
}
.index a.active{
	border-bottom: 5px solid orange;
	color: orange;
}